NOWTHEN, Minn. — Authorities are investigating a deadly crash Friday night in the north metro.

The Anoka County Sheriff's Office says it happened just before 8 p.m. in Nowthen, just east of Elk River.

A minivan with two adults and two children inside, all from Zimmerman, were heading northbound on Jarvis Street Northwest when they collided with a "large piece of equipment" that was being towed by a southbound pick-up truck, the sheriff's office says.

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The minivan's driver, 32-year-old Cole Deiley, was killed in the crash. His three passengers — a 30-year-old woman, a 4-year-old girl and a 2-year-old boy — were all injured, and have all since been released from the hospital.

The pick-up truck driver wasn't hurt. The Minnesota State Patrol is assisting with the investigation.